FF_polar_irradiance_x

ofiber.FF_polar_irradiance_x(r, theta, ell, lambda0, a, V, b)

Integral of x-polarized far-field irradiance over all azimuthal angles.

The magnitude of the field is squared and normalized by the square of the electric field magnitude. The integral of cos^2(ell*phi) over phi from 0 to 2𝜋 is 𝜋 and we get a slightly simpler result than the function above.

Parameters:

• r – radial distance from the fiber axis (microns).

• theta – polar angle in radians.

• ell – azimuthal mode number.

• lambda0 – Wavelength of light in the medium (microns).

• a – Radius of the fiber core (microns).

• V – Normalized frequency parameter of the fiber.

• b – Normalized propagation constant.

Returns:

Azimuthally integrated irradiance pattern.